Description

2-[2,3-Bis[3,5-Bis(1,1-Dimethylethyl)-4-Oxo-2,5-Cyclohexadien-1-Ylidene]Cyclopropylidene]-1H-Indene-1,3(2H)-Dione is a high-performance, sterically hindered organic compound belonging to the class of quinone methide derivatives. This specialized chemical is valued for its unique chromophoric and electron-accepting properties, making it a critical component in advanced material science. It is primarily sought after by research and development teams in the polymer, specialty chemical, and advanced electronics industries for applications requiring precise optical or electronic characteristics.

Application

• Advanced Polymer Stabilizers: Acts as a highly effective light stabilizer and antioxidant in high-performance engineering plastics and coatings, protecting against UV degradation and thermal oxidation.
• Organic Electronic Materials: Serves as a key electron-acceptor or dopant material in the development of organic semiconductors, photovoltaic cells (OPVs), and OLEDs.
• Specialty Dyes and Pigments: Used as an intermediate in the synthesis of high-stability, functional dyes with specific light-absorption properties.
• Photoresist and Imaging Chemistry: Employed in advanced photoresist formulations for microelectronics and lithography due to its photoactive characteristics.
• Research & Development: A vital building block for academic and industrial research in organic synthesis, materials science, and photochemistry.
• Chemical Intermediate: Utilized in the synthesis of more complex molecules for pharmaceutical and agrochemical research.

Basic Information

Product Name	2-[2,3-Bis[3,5-Bis(1,1-Dimethylethyl)-4-Oxo-2,5-Cyclohexadien-1-Ylidene]Cyclopropylidene]-1H-Indene-1,3(2H)-Dione
CAS No.	63165-94-6
Molecular Formula	C₅₃H₆₄O₄
Molecular Weight	765.07 g/mol
Synonyms	2,2'-(1,2-Ethenediylidene)bis[5-(1,1-dimethylethyl)-3-hydroxy-4-oxo-2,5-cyclohexadien-1-ylidene]propanedinitrile (related structure); Bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)malononitrile derivative; Quinone methide dimer; Sterically hindered quinone; Light stabilizer intermediate; Antioxidant precursor; CAS 63165-94-6.
EINECS	Contact for details

Quality Control

Our production of 2-[2,3-Bis[3,5-Bis(1,1-Dimethylethyl)-4-Oxo-2,5-Cyclohexadien-1-Ylidene]Cyclopropylidene]-1H-Indene-1,3(2H)-Dione adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectroscopic identification (IR, NMR), and residual solvent analysis, to ensure consistent performance and high-grade specifications. Certificates of Analysis (COA) detailing all test results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). For long-term storage, consider packaging under an inert gas such as nitrogen or argon to maintain product integrity.

Specification

Item	Specification
Appearance	Dark red to purple crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.